Thread (66 messages) 66 messages, 3 authors, 2021-09-09
STALE1844d

Revision v1 of 2 in this series.

Revisions (2)
  1. v1 current
  2. v2 [diff vs current]

[PATCH 2/9] bulk-checkin.c: store checksum directly

From: Taylor Blau <hidden>
Date: 2021-09-09 03:25:00
Subsystem: the rest · Maintainer: Linus Torvalds

finish_bulk_checkin() stores the checksum from finalize_hashfile() by
writing to the `hash` member of `struct object_id`, but that hash has
nothing to do with an object id (it's just a convenient location that
happens to be sized correctly).

Store the hash directly in an unsigned char array. This behaves the same
as writing to the `hash` member, but makes the intent clearer (and
avoids allocating an extra four bytes for the `algo` member of `struct
object_id`).

Signed-off-by: Taylor Blau <redacted>
---
 bulk-checkin.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/bulk-checkin.c b/bulk-checkin.c
index b023d9959a..6283bc8bd9 100644
--- a/bulk-checkin.c
+++ b/bulk-checkin.c
@@ -25,7 +25,7 @@ static struct bulk_checkin_state {
 
 static void finish_bulk_checkin(struct bulk_checkin_state *state)
 {
-	struct object_id oid;
+	unsigned char hash[GIT_MAX_RAWSZ];
 	struct strbuf packname = STRBUF_INIT;
 	int i;
 
@@ -37,11 +37,11 @@ static void finish_bulk_checkin(struct bulk_checkin_state *state)
 		unlink(state->pack_tmp_name);
 		goto clear_exit;
 	} else if (state->nr_written == 1) {
-		finalize_hashfile(state->f, oid.hash, CSUM_HASH_IN_STREAM | CSUM_FSYNC | CSUM_CLOSE);
+		finalize_hashfile(state->f, hash, CSUM_HASH_IN_STREAM | CSUM_FSYNC | CSUM_CLOSE);
 	} else {
-		int fd = finalize_hashfile(state->f, oid.hash, 0);
-		fixup_pack_header_footer(fd, oid.hash, state->pack_tmp_name,
-					 state->nr_written, oid.hash,
+		int fd = finalize_hashfile(state->f, hash, 0);
+		fixup_pack_header_footer(fd, hash, state->pack_tmp_name,
+					 state->nr_written, hash,
 					 state->offset);
 		close(fd);
 	}
@@ -49,7 +49,7 @@ static void finish_bulk_checkin(struct bulk_checkin_state *state)
 	strbuf_addf(&packname, "%s/pack/pack-", get_object_directory());
 	finish_tmp_packfile(&packname, state->pack_tmp_name,
 			    state->written, state->nr_written,
-			    &state->pack_idx_opts, oid.hash);
+			    &state->pack_idx_opts, hash);
 	for (i = 0; i < state->nr_written; i++)
 		free(state->written[i]);
 
-- 
2.33.0.96.g73915697e6
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